JSWorkerGlobalScopeBase.cpp [plain text]
#include "config.h"
#include "JSWorkerGlobalScopeBase.h"
#include "DOMWrapperWorld.h"
#include "EventLoop.h"
#include "JSDOMGlobalObjectTask.h"
#include "JSDOMGuardedObject.h"
#include "JSDedicatedWorkerGlobalScope.h"
#include "JSMicrotaskCallback.h"
#include "JSWorkerGlobalScope.h"
#include "WorkerGlobalScope.h"
#include "WorkerThread.h"
#include <JavaScriptCore/JSCInlines.h>
#include <JavaScriptCore/JSCJSValueInlines.h>
#include <JavaScriptCore/JSProxy.h>
#include <JavaScriptCore/Microtask.h>
#include <wtf/Language.h>
#if ENABLE(SERVICE_WORKER)
#include "JSServiceWorkerGlobalScope.h"
#endif
namespace WebCore {
using namespace JSC;
const ClassInfo JSWorkerGlobalScopeBase::s_info = { "WorkerGlobalScope", &JSDOMGlobalObject::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSWorkerGlobalScopeBase) };
const GlobalObjectMethodTable JSWorkerGlobalScopeBase::s_globalObjectMethodTable = {
&supportsRichSourceInfo,
&shouldInterruptScript,
&javaScriptRuntimeFlags,
&queueMicrotaskToEventLoop,
&shouldInterruptScriptBeforeTimeout,
nullptr, nullptr, nullptr, nullptr, nullptr, &promiseRejectionTracker,
&defaultLanguage,
nullptr, nullptr, };
JSWorkerGlobalScopeBase::JSWorkerGlobalScopeBase(JSC::VM& vm, JSC::Structure* structure, RefPtr<WorkerGlobalScope>&& impl)
: JSDOMGlobalObject(vm, structure, normalWorld(vm), &s_globalObjectMethodTable)
, m_wrapped(WTFMove(impl))
{
}
void JSWorkerGlobalScopeBase::finishCreation(VM& vm, JSProxy* proxy)
{
m_proxy.set(vm, this, proxy);
Base::finishCreation(vm, m_proxy.get());
ASSERT(inherits(vm, info()));
}
void JSWorkerGlobalScopeBase::clearDOMGuardedObjects()
{
auto guardedObjects = m_guardedObjects;
for (auto& guarded : guardedObjects)
guarded->clear();
}
void JSWorkerGlobalScopeBase::visitChildren(JSCell* cell, SlotVisitor& visitor)
{
JSWorkerGlobalScopeBase* thisObject = jsCast<JSWorkerGlobalScopeBase*>(cell);
ASSERT_GC_OBJECT_INHERITS(thisObject, info());
Base::visitChildren(thisObject, visitor);
visitor.append(thisObject->m_proxy);
}
void JSWorkerGlobalScopeBase::destroy(JSCell* cell)
{
static_cast<JSWorkerGlobalScopeBase*>(cell)->JSWorkerGlobalScopeBase::~JSWorkerGlobalScopeBase();
}
ScriptExecutionContext* JSWorkerGlobalScopeBase::scriptExecutionContext() const
{
return m_wrapped.get();
}
bool JSWorkerGlobalScopeBase::supportsRichSourceInfo(const JSGlobalObject* object)
{
return JSGlobalObject::supportsRichSourceInfo(object);
}
bool JSWorkerGlobalScopeBase::shouldInterruptScript(const JSGlobalObject* object)
{
return JSGlobalObject::shouldInterruptScript(object);
}
bool JSWorkerGlobalScopeBase::shouldInterruptScriptBeforeTimeout(const JSGlobalObject* object)
{
return JSGlobalObject::shouldInterruptScriptBeforeTimeout(object);
}
RuntimeFlags JSWorkerGlobalScopeBase::javaScriptRuntimeFlags(const JSGlobalObject* object)
{
const JSWorkerGlobalScopeBase *thisObject = jsCast<const JSWorkerGlobalScopeBase*>(object);
return thisObject->m_wrapped->thread().runtimeFlags();
}
void JSWorkerGlobalScopeBase::queueMicrotaskToEventLoop(JSGlobalObject& object, Ref<JSC::Microtask>&& task)
{
JSWorkerGlobalScopeBase& thisObject = static_cast<JSWorkerGlobalScopeBase&>(object);
auto callback = JSMicrotaskCallback::create(thisObject, WTFMove(task));
auto& context = thisObject.wrapped();
context.eventLoop().queueMicrotask([callback = WTFMove(callback)]() mutable {
callback->call();
});
}
JSValue toJS(JSGlobalObject* lexicalGlobalObject, JSDOMGlobalObject*, WorkerGlobalScope& workerGlobalScope)
{
return toJS(lexicalGlobalObject, workerGlobalScope);
}
JSValue toJS(JSGlobalObject*, WorkerGlobalScope& workerGlobalScope)
{
WorkerScriptController* script = workerGlobalScope.script();
if (!script)
return jsNull();
JSWorkerGlobalScope* contextWrapper = script->workerGlobalScopeWrapper();
ASSERT(contextWrapper);
return contextWrapper->proxy();
}
JSDedicatedWorkerGlobalScope* toJSDedicatedWorkerGlobalScope(VM& vm, JSValue value)
{
if (!value.isObject())
return nullptr;
const ClassInfo* classInfo = asObject(value)->classInfo(vm);
if (classInfo == JSDedicatedWorkerGlobalScope::info())
return jsCast<JSDedicatedWorkerGlobalScope*>(asObject(value));
if (classInfo == JSProxy::info())
return jsDynamicCast<JSDedicatedWorkerGlobalScope*>(vm, jsCast<JSProxy*>(asObject(value))->target());
return nullptr;
}
JSWorkerGlobalScope* toJSWorkerGlobalScope(VM& vm, JSValue value)
{
if (!value.isObject())
return nullptr;
const ClassInfo* classInfo = asObject(value)->classInfo(vm);
if (classInfo == JSDedicatedWorkerGlobalScope::info())
return jsCast<JSDedicatedWorkerGlobalScope*>(asObject(value));
#if ENABLE(SERVICE_WORKER)
if (classInfo == JSServiceWorkerGlobalScope::info())
return jsCast<JSServiceWorkerGlobalScope*>(asObject(value));
#endif
if (classInfo == JSProxy::info())
return jsDynamicCast<JSWorkerGlobalScope*>(vm, jsCast<JSProxy*>(asObject(value))->target());
return nullptr;
}
#if ENABLE(SERVICE_WORKER)
JSServiceWorkerGlobalScope* toJSServiceWorkerGlobalScope(VM& vm, JSValue value)
{
if (!value.isObject())
return nullptr;
const ClassInfo* classInfo = asObject(value)->classInfo(vm);
if (classInfo == JSServiceWorkerGlobalScope::info())
return jsCast<JSServiceWorkerGlobalScope*>(asObject(value));
if (classInfo == JSProxy::info())
return jsDynamicCast<JSServiceWorkerGlobalScope*>(vm, jsCast<JSProxy*>(asObject(value))->target());
return nullptr;
}
#endif
}